Xash3D FWGS engine

Enhanced version of the HLDS engine with bug fixes, security patches, and optimizations for stable servers.

Vulkan Ray Tracing fork of Xash3D FWGS engine. Intended to be merged into master at some point in the future.

Modern Half-Life 1 SDK for Xash3D FWGS engine, has enhanced graphics and physics and a lot of new features for mod-makers. Crossplatform, supports Windows/Linux. Based on XashXT and Spirit Of Half-…

Fork of the Xash3D FWGS with a real-time path tracing

WIP Improved version of xash3d emscripten in the browser

Open source Goldsrc-based mod replicating 007 Nightfire.

WebHL is a fork of hlviewer.js that uses the File System Access API to load game assets direct from your computer rather than from a server.

Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses

Trinity Rendering Engine

Half-Life game physics described in excruciating detail!

GoldSource Engine Renderer SDK for Delphi

VGUI decompile code

OpenStreetMap to Valve Map Format converter

Online sprite (*.spr) viewer

HL2-style, classic FPS movement for Unreal Engine implemented in C++

Adrenaline Gamer loadauthid realnames repository

Half-Life Co-op mod

GoldSrc demo parser written with fp-ts.

A complete list of GoldSrc versions, build dates, including original binaries!